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  • [ RELEASE ] 3G iPhone Unlocked - Eat the yellowsn0w


    You've waited. You've watched. You've waited more. Now... its here!

    The Dev Team has released yellowsn0w, the 3G iPhone unlock. Its available NOW via Cydia, you'll need to add their source (check the release post for the URL - they'd prefer sites didn't link the repo url) then check your Changes tab - yellowsn0w should be right on top. If you don't know how, here's how to add a source in Cydia. Refresh if you don't see it. If you're reading this later, just search for yellowsn0w in Cydia (making sure of course you've added their source). As guessed (and confirmed a bit later) from their post earlier today, IT WORKS WITH THE 02.28.00 BASEBAND version - in fact, ONLY for that baseband version. Meaning yes, you will need to update in iTunes and then use PwnageTool on a freshly updated 2.2 iPhone if you DON'T have 02.28.00 right now. Running the unlock on older basebands will simply cause it to exit, and do nothing. "No harm, no foul."

    All you do is go to the package in Cydia and install just like you'd install any other package. Boom - restart the iPhone, and...

    ...wait for the slide to unlock screen, then wait 10 or 15 secs more. If you don’t see your carrier name pop up, then remove your SIM, reinsert it, and wait 10 secs more. This is the step we’ll be working on eliminating next.
    Then you're unlocked. A quick note for users whose SIM cards come preinstalled with menus or apps on them, you'll

    ...need to pull and reinsert the SIM once after rebooting the phone to engage the unlock. Even though it’s needed only once per boot, it’s still a nuisance and we’ll be fixing that ASAP... You’ll know if you fall into that “extra step” category if your carrier doesn’t show up within about 10 seconds of the slide to unlock screen.

    There is a known issue with SIM cards that have STK (SIM Toolkit) application menus, these menus are usually items such as “top up” “get credit” etc. These menu items confuse the application sometimes, removing and reinserting the SIM fixes this issue.
    Answers to some potential questions:

    My modem software says I have {less than 02.28.00} - can I still unlock?
    Yes, but you have to upgrade your baseband to 02.28.00 before you do anything. First restore completely to 2.2 in iTunes (just connect the iPhone to the computer, go to the iPhone tab in iTunes, and press Restore in the version area).You can follow this guide to jailbreak after, then install the unlock from Cydia.

    Is this permanent? In other words, will I be able to upgrade my firmware when the next one comes out and keep my unlock?
    No. This is a soft[ware] unlock, not a hardware unlock, so you'll need to do as we've mostly been doing - wait to upgrade on new firmwares (all current firmwares are unlockable as of now) until the Dev Team releases a patch. Of course we'll have details for you every time Apple comes out with a firmware update.

    What if I WANT to remove the unlock?
    yellowsn0w is completely removable through Cydia, the command line, and iTunes.

    I'm still on [2.1 / 2.0.2 / 2.0.1 / 2.0] firmware on my iPhone 3G, but would like to upgrade... what should I do?
    Back up your iPhone. Restore in iTunes. Follow this guide to upgrade to 2.2 jailbroken, then simply install yellowsn0w from Cydia when you're finished - unlocked, jailbroken, enjoy.

    I have T-Mobile, and they've recently upgraded their network to include 3G. Can I use the T-Mobile 3G data network with my unlocked iPhone 3G?
    No - T-Mobile and AT&T use different 3G frequencies, so your iPhone 3G won't pick up T-Mobiles 3G network. You CAN however still use T-Mobile EDGE and GPRS just fine with the iPhone 3G - as well as all T-Mobile's voice features, and WiFi of course.

    I have AT&T. I don't plan on selling my iPhone anytime soon, and I'm staying with AT&T. Is there any benefit for me to unlock my iPhone?
    Nope. Aside from the ability to use the iPhone 3G on other networks than it comes locked to (T-mobile in the States, various carriers elsewhere), and the higher potential asking price if you sell your iPhone unlocked, there are no benefits to unlocking your iPhone.

    OMG WTF BBQ!!!! This is awesome and I want to donate. Who do I send money to?
    Don't. They like uh... post cards. Scanned. And emailed.

    I think you're wrong about the basebands it will work with. I have an older baseband, and I'm going to run the unlock anyway. I think it will magically work in my case.
    I'm going to have a sandwich. After we each do these things, lets reconvene and see who's happier.


    [B]Edit: T-Mobile USA Users must turn off the 3G toggle in settings.

    Everyone: You MUST have your SIM card in (without the proxy chip) throughout the entire process. With your SIM card installed... Install yellowsn0w 0.9, then reboot and wait up to 2 minutes for the phone to get service. If it doesn't work then uninstall 0.9 and try version 0.91. Keep reporting

    If you have a SIM PIN you will need to REMOVE this first before running yellowsn0w... it is not compatible (yet)[/B


    Update: Version 0.9.5 should fix T-Mobile USA outgoing call SIM issues.

    EDIT: In case there is still any confusion about how to unlock your 3G iPhone, a tutorial has been created. Be sure to read the instructions very carefully so that you are on the right firmware or you maybe never be able to unlock your 3G.
    IPhone 3G Unlock Guide - ModMyi - Wiki
    This article was originally published in forum thread: [ RELEASE ] 3G iPhone Unlocked - Eat the yellowsn0w started by Kyle Matthews View original post
    Comments 1325 Comments
    1. Zehlek's Avatar
      Zehlek -
      I did exactly that and now no more fluxuating signal. Thanks a lot for your help. :-D

      Quote Originally Posted by Xenthor View Post
      After trying forever, I finally got it to work again.

      I tested it on my 8GB iPhone 3G, without a hitch. I got signal as soon as took it out and waited 10 seconds after the lockscreen showed up.

      However, on my 16GB iPhone 3G, this was NOT the case. I took literally two hours to get it to work. But right now it seems to work, so I won't even TRY to make calls since many are reporting it not working.

      I ended up doing the Airplane Mode On & Off thing, and that seemed to work.

      Using T-Mobile as well.



      Try doing this:

      1. Install yellowsn0w thru cydia, keep your T-Mobile SIM in the iphone while doing this.
      2. Reset Network, General -> Network -> Reset Network.
      Setting "Most important" 99% success rate will depend on this
      3. Reboot your iPhone
      4. Wait a little over a min.
      5. Remove your sim card and re-insert it back in
      6. Wait 30 sec.
      7. Turn on Airplane mode and wait 10 sec. "This is important as well"
      8. Turn of Airplane mode, you should see "searching" start smiling T-Mobile carrier will start appearing.
      9. See if you can receive calls!
    1. Turntablist's Avatar
      Turntablist -
      Followed all instructions didn't work when i put in airplane mode and took off it came up invalid Sim didn't even search for network??? But before i put in airplane jus had dots no signal

      This sucks

      Dave in Dublin iphone 3g 16white
    1. Xenthor's Avatar
      Xenthor -
      Quote Originally Posted by Dee$ View Post
      yes it does work with T-mobile in US (i am in Chicago). i have 16 gb 3g and i tried everything that i found on this post and got nowhere, not even signals. i tried uninstalling and reinstalling yellowsnow too but no luck. finally, i put in my friends t-mobile sim which is a lot newer sim than mine and got some signals and T-mobile sign. i tried making call but as everyone it failed, but when i put in my own sim again i didnt have any signals at all. so i turned an airplane mode on and waited about 30seconds-minute and turned off airplane mode and yes i got full signals and now i can make calls and receive. everything seems to be working fine as of now but when i turn the phone off and turn it back on i get no signals again. however, when i use the airplane mode trick it comes back to normal. now i have full signals, i can make calls, receive and edge and wifi is working good too.... hope this helps,
      Glad someone else can confirm that the airplane on & off thing works without having to do all those other instructions.

      I forgot to say that my T-Mobile SIM card is a year old, not sure if that helps anyone. As for calling, i tried again and still NO luck. I think I'll just stop there and wait for a fix, in the meantime at least I can receive calls, and I can get SMS and send SMS.
    1. law111's Avatar
      law111 -
      Idk if anyone is noticing but it seem's the 16G phones arent doing to well, but 8G is... idk.. just an observation that looks to be true. I have a 16G its also having trouble

      Addition: I dont believe its really something different other than 8G more, idk probably just random
    1. jaystar's Avatar
      jaystar -
      time 2 finally get a 3G
    1. Xenthor's Avatar
      Xenthor -
      Quote Originally Posted by law111 View Post
      Idk if anyone is noticing but it seem's the 16G phones arent doing to well, but 8G is... idk.. just an observation that looks to be true. I have a 16G its also having trouble
      Might be possible, not sure. I haven't tested my SIM again on the 8GB iPhone 3G. But I did get signal on that without a hitch just by waiting the 10 seconds after re-inserting the SIM. While on the 16GB that didn't work, until I resetted my network, and then did all the steps posted a few pages back to get it to work.

      Quote Originally Posted by Zehlek View Post
      I did exactly that and now no more fluxuating signal. Thanks a lot for your help. :-D
      Glad it worked for you too pal! Not sure if it will work for you, but incase you loose signal again, you don't even need to do all that. Just go to Airplane mode, and keep changing it from On to Off until you get signal. That's what I've been doing so I can test if I can make calls. Although it's not working for me.
    1. getoffthejs's Avatar
      getoffthejs -
      IT WORKED! Had to uninstall then install again but now all is good!
    1. waseem3761's Avatar
      waseem3761 -
      I have followed up the instruction on Modmyi + on dev team website it DIDN'T work for me..... (( yellowsn0w 0.91 baseband 02.28.00.....
    1. kk_maths97's Avatar
      kk_maths97 -
      nice tool...i wish i had iphone 3G :-(

      will this unlock for 2g ipod touch or no???
    1. Xenthor's Avatar
      Xenthor -
      Quote Originally Posted by kk_maths97 View Post
      nice tool...i wish i had iphone 3G :-(

      will this unlock for 2g ipod touch or no???
      ...iPod Touch? Touch don't have any sort of phone functions.

      This unlock is only for the 3G, the 2G iPhones already have a stable unlock.
    1. Zehlek's Avatar
      Zehlek -
      Quote Originally Posted by kk_maths97 View Post
      nice tool...i wish i had iphone 3G :-(

      will this unlock for 2g ipod touch or no???
      I doubt it since it isn't used with any carrier for 3G or EDGE. It is only an iPod unfortunately
    1. hamza2588's Avatar
      hamza2588 -
      Quote Originally Posted by kk_maths97 View Post
      nice tool...i wish i had iphone 3G :-(

      will this unlock for 2g ipod touch or no???
      ipod 2g does not have a jailbreak yet
    1. imagineThiss's Avatar
      imagineThiss -
      Quote Originally Posted by getoffthejs View Post
      IT WORKED! Had to uninstall then install again but now all is good!
      what do you mean by all is good... and where you from, provider etc. etc.. lol help us out buddy... are you able to make outgoing calls ??
    1. sr71blackbird92's Avatar
      sr71blackbird92 -
      random question: why would people need to RESTORE and not UPDATE in itunes from 2.1 to 2.2? dont they both update the baseband??
    1. bballcat03's Avatar
      bballcat03 -
      Quote Originally Posted by sr71blackbird92 View Post
      random question: why would people need to RESTORE and not UPDATE in itunes from 2.1 to 2.2? dont they both update the baseband??
      it will update the baseband when you restore via itunes
    1. DoerrFan's Avatar
      DoerrFan -
      Quote Originally Posted by poetic_folly View Post
      I think you're wrong about the basebands it will work with. I have an older baseband, and I'm going to run the unlock anyway. I think it will magically work in my case.
      I'm going to have a sandwich. After we each do these things, lets reconvene and see who's happier.
      Lmfao.
    1. scincade's Avatar
      scincade -
      when i do your instructions i get invalid sim
    1. luckydezl's Avatar
      luckydezl -
      I can receive incoming calls,send text and connect to wifi...i cant connect to edge or make outgoing calls either, I can see the E on the top left corner...I have a newer sim card that came out of a g1
    1. scincade's Avatar
      scincade -
      im getting invalid sim can anyone help
    1. rickyscivic's Avatar
      rickyscivic -
      I cant even find yellowsn0w in cydia...any 1 no why??

      EDIT: Sorry i hadnt added the source but now i have it installed,,,,now im just trying to get it to work..any1 who helps will be thanked a million times lol..